Oil removal cartridge media acts as a barrier to trace oil contamination often present in feed or process water. Thorough removal of trace oil contamination from water is becoming an increasingly common requirement, as less desirable water sources have to be utilized. These cartridges are effective because it chemically bonds with the removed hydrocarbon. This also means removed oil cannot leach out, even when the media is fully saturated, a major problem with alternative oil separation technologies. The media is convenient to use, the pressure differential through the media remains constant throughout its life.

Oil ring is the lowermost piston ring that scrapes off excess oil from the cylinder walls and returns it to the oil pan via vents in the ring and piston. It is an open-ended ring that fits into a groove on the outer diameter of the piston. Its main function is to form a seal between the piston and cylinder wall.